Which of the following non-metal can conduct electricity?

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Carbon

Nitrogen

Oxygen

Sulphur

answer is A.

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Detailed Solution

concept - For the conduction of electricity, free electrons are needed. In general, non-metals are considered to be poor conductors of electricity.
Carbon is the only non-metal which conducts electricity in the form of Graphite. It has a layered structure in which carbons are arranged in hexagonal rings. These layers are held together by weaker forces.
Each carbon atom has one non-bonded electron which is delocalized between the layers of Graphite. Due to the delocalization of these pi-electron clouds present all over the substance graphite is a very good conductor of electricity.
Therefore, graphite (Carbon) will conduct electricity.
Hence, the correct option is (1).

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